O18 WFST, Lenghu

Where is this observatory?

Graphs

Yearly Breakdown of MPEC Types

Term definition: Editorial - Editorial MPECs associated with this station.
Discovery - MPECs associated with discovery made by this station.
OrbitUpdate - MPECs associated with orbit updates involving observations made by this station. Typically, these are recoveries of single-opposition objects.
DOU - Daily Orbit Update MPECs involving observations made by this station.
ListUpdate - MPECs associated with list updates involving observations made by this station. This category has largely been retired since 2012.
Retraction - Retracted MPECs involving observations made by this station.
Followup - MPECs associated with follow-up observations made by this station to an object discovered elsewhere.
FirstFollowup - MPECs associated with follow-up observations made by this station to an object discovered elsewhere, with this station being the first station to follow-up.
Other - MPECs that do not fit into categories listed above and involve observations made by this station.

Yearly Breakdown of Discovery Object Types

Yearly Breakdown of Orbit Update Object Types

Breakdown by Observers

Breakdown by Measurers

Breakdown by Facilities

Breakdown by Objects

Annual Breakdown

Weekly Breakdown

Hourly Breakdown

Tables

Yearly Breakdown of MPEC Types

Year Total MPECs Editorial Discovery P/R/FU DOU List Update Retraction Other Follow-Up First Follow-Up
2024 79 0 12 12 51 0 0 0 4 0
2023 31 0 4 8 15 0 0 0 3 1
2022 0 0 0 0 0 0 0 0 0 0
2021 0 0 0 0 0 0 0 0 0 0
2020 0 0 0 0 0 0 0 0 0 0
2019 0 0 0 0 0 0 0 0 0 0
2018 0 0 0 0 0 0 0 0 0 0
2017 0 0 0 0 0 0 0 0 0 0
2016 0 0 0 0 0 0 0 0 0 0
2015 0 0 0 0 0 0 0 0 0 0
2014 0 0 0 0 0 0 0 0 0 0
2013 0 0 0 0 0 0 0 0 0 0
2012 0 0 0 0 0 0 0 0 0 0
2011 0 0 0 0 0 0 0 0 0 0
2010 0 0 0 0 0 0 0 0 0 0
2009 0 0 0 0 0 0 0 0 0 0
2008 0 0 0 0 0 0 0 0 0 0
2007 0 0 0 0 0 0 0 0 0 0
2006 0 0 0 0 0 0 0 0 0 0
2005 0 0 0 0 0 0 0 0 0 0
2004 0 0 0 0 0 0 0 0 0 0
2003 0 0 0 0 0 0 0 0 0 0
2002 0 0 0 0 0 0 0 0 0 0
2001 0 0 0 0 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0
1999 0 0 0 0 0 0 0 0 0 0
1998 0 0 0 0 0 0 0 0 0 0
1997 0 0 0 0 0 0 0 0 0 0
1996 0 0 0 0 0 0 0 0 0 0
1995 0 0 0 0 0 0 0 0 0 0
1994 0 0 0 0 0 0 0 0 0 0
1993 0 0 0 0 0 0 0 0 0 0

List of Individual MPECs

Index Name Date/Time Discoverer First-responding Confirmer Object Type Search Archival Image
1 MPEC 2024-Y03 DAILY ORBIT UPDATE (2024 December 17) 2024-12-17 12:09:00
2 MPEC 2024-X324 DAILY ORBIT UPDATE (2024 December 15) 2024-12-15 12:08:00
3 MPEC 2024-X321 DAILY ORBIT UPDATE (2024 December 14) 2024-12-14 12:07:00
4 MPEC 2024-X68 2024 XA1 2024-12-03 18:15:00 NEA (H>22) CATCH
5 MPEC 2024-S24 DAILY ORBIT UPDATE (2024 September 20) 2024-09-20 12:06:00
6 MPEC 2024-P23 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-08-02 08:12:00 Comet CATCH
7 MPEC 2024-O58 DAILY ORBIT UPDATE (2024 July 26) 2024-07-26 12:06:00
8 MPEC 2024-N144 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-07-14 01:54:00 Comet CATCH
9 MPEC 2024-N124 DAILY ORBIT UPDATE (2024 July 10) 2024-07-10 12:02:00
10 MPEC 2024-N97 DAILY ORBIT UPDATE (2024 July 8) 2024-07-08 12:19:00
11 MPEC 2024-N80 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-07-07 07:01:00 Comet CATCH
12 MPEC 2024-N28 DAILY ORBIT UPDATE (2024 July 4) 2024-07-04 12:14:00
13 MPEC 2024-N27 DAILY ORBIT UPDATE (2024 July 3) 2024-07-03 12:12:00
14 MPEC 2024-N16 DAILY ORBIT UPDATE (2024 July 2) 2024-07-02 12:11:00
15 MPEC 2024-M121 DAILY ORBIT UPDATE (2024 June 30) 2024-06-30 12:13:00
16 MPEC 2024-M118 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-06-30 07:07:00 Comet CATCH
17 MPEC 2024-M105 DAILY ORBIT UPDATE (2024 June 28) 2024-06-28 12:08:00
18 MPEC 2024-M79 2024 MR 2024-06-27 05:26:00 NEA (18>H>22) CATCH
19 MPEC 2024-M45 DAILY ORBIT UPDATE (2024 June 24) 2024-06-24 12:04:00
20 MPEC 2024-M43 DAILY ORBIT UPDATE (2024 June 23) 2024-06-23 12:03:00
21 MPEC 2024-M42 DAILY ORBIT UPDATE (2024 June 22) 2024-06-22 12:03:00
22 MPEC 2024-M41 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-06-21 20:09:00 Comet CATCH
23 MPEC 2024-M38 DAILY ORBIT UPDATE (2024 June 21) 2024-06-21 12:02:00
24 MPEC 2024-M35 DAILY ORBIT UPDATE (2024 June 20) 2024-06-20 12:13:00
25 MPEC 2024-M11 DAILY ORBIT UPDATE (2024 June 17) 2024-06-17 12:11:00
26 MPEC 2024-M08 DAILY ORBIT UPDATE (2024 June 16) 2024-06-16 12:11:00
27 MPEC 2024-L146 DAILY ORBIT UPDATE (2024 June 15) 2024-06-15 12:10:00
28 MPEC 2024-L135 DAILY ORBIT UPDATE (2024 June 14) 2024-06-14 12:09:00
29 MPEC 2024-L125 DAILY ORBIT UPDATE (2024 June 12) 2024-06-12 12:08:00
30 MPEC 2024-L88 DAILY ORBIT UPDATE (2024 June 8) 2024-06-08 12:05:00
31 MPEC 2024-L77 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-06-07 05:57:00 Comet CATCH
32 MPEC 2024-L65 DAILY ORBIT UPDATE (2024 June 6) 2024-06-06 12:03:00
33 MPEC 2024-L56 DAILY ORBIT UPDATE (2024 June 5) 2024-06-05 12:01:00
34 MPEC 2024-L29 DAILY ORBIT UPDATE (2024 June 3) 2024-06-03 12:15:00
35 MPEC 2024-L10 DAILY ORBIT UPDATE (2024 June 1) 2024-06-01 12:14:00
36 MPEC 2024-K149 DAILY ORBIT UPDATE (2024 May 31) 2024-05-31 12:12:00
37 MPEC 2024-K134 DAILY ORBIT UPDATE (2024 May 30) 2024-05-30 12:11:00
38 MPEC 2024-K96 DAILY ORBIT UPDATE (2024 May 27) 2024-05-27 12:07:00
39 MPEC 2024-K03 DAILY ORBIT UPDATE (2024 May 16) 2024-05-16 12:02:00
40 MPEC 2024-J304 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-05-14 19:08:00 Comet CATCH
41 MPEC 2024-J302 DAILY ORBIT UPDATE (2024 May 14) 2024-05-14 12:04:00
42 MPEC 2024-J296 DAILY ORBIT UPDATE (2024 May 13) 2024-05-13 12:03:00
43 MPEC 2024-J99 DAILY ORBIT UPDATE (2024 May 6) 2024-05-06 12:07:00
44 MPEC 2024-J52 2024 HE3 2024-05-03 18:25:00 NEA (H>22) CATCH
45 MPEC 2024-H76 DAILY ORBIT UPDATE (2024 April 26) 2024-04-26 12:06:00
46 MPEC 2024-H65 COMET P/2006 AH2 = P/2022 U6 (Sheppard-Tholen) 2024-04-23 05:10:00 Comet CATCH
47 MPEC 2024-H49 2024 GQ7 2024-04-20 18:34:00 NEA (H>22) CATCH
48 MPEC 2024-G193 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-04-13 23:03:00 Comet CATCH
49 MPEC 2024-G147 2024 GA3 2024-04-11 10:56:00 NEA (H>22) CATCH
50 MPEC 2024-G134 DAILY ORBIT UPDATE (2024 April 10) 2024-04-10 12:17:00
51 MPEC 2024-G111 2024 FG6 2024-04-09 11:49:00 NEA (H>22) CATCH
52 MPEC 2024-G88 DAILY ORBIT UPDATE (2024 April 7) 2024-04-07 12:13:00
53 MPEC 2024-F74 DAILY ORBIT UPDATE (2024 March 22) 2024-03-22 12:09:00
54 MPEC 2024-E145 2022 EY2 2024-03-11 13:25:00 NEA (18>H>22) CATCH
55 MPEC 2024-E144 DAILY ORBIT UPDATE (2024 March 11) 2024-03-11 12:10:00
56 MPEC 2024-E140 DAILY ORBIT UPDATE (2024 March 10) 2024-03-10 12:09:00
57 MPEC 2024-E139 2024 EY2 2024-03-10 01:20:00 NEA (18>H>22) CATCH
58 MPEC 2024-D56 2024 AW15 2024-02-18 23:14:00 Unusual CATCH
59 MPEC 2024-C49 2024 AA11 2024-02-05 14:10:00 NEA (18>H>22) CATCH
60 MPEC 2024-B91 DAILY ORBIT UPDATE (2024 January 22) 2024-01-22 12:38:00
61 MPEC 2024-B77 2024 AL6 2024-01-21 02:26:00 NEA (H>22) CATCH
62 MPEC 2024-B43 DAILY ORBIT UPDATE (2024 January 19) 2024-01-19 12:26:00
63 MPEC 2024-B28 DAILY ORBIT UPDATE (2024 January 18) 2024-01-18 12:25:00
64 MPEC 2024-B26 2024 AY4 2024-01-18 03:06:00 NEA (18>H>22) CATCH
65 MPEC 2024-B20 DAILY ORBIT UPDATE (2024 January 17) 2024-01-17 12:27:00
66 MPEC 2024-B17 2024 AW4 2024-01-17 07:46:00 NEA (18>H>22) CATCH
67 MPEC 2024-B13 2023 XH27 2024-01-16 20:04:00 NEA (H>22) CATCH
68 MPEC 2024-B05 2024 AR4 2024-01-16 13:35:00 NEA (18>H>22) CATCH
69 MPEC 2024-B03 DAILY ORBIT UPDATE (2024 January 16) 2024-01-16 12:25:00
70 MPEC 2024-A166 2013 AK20 2024-01-15 14:11:00 NEA (H>22) CATCH
71 MPEC 2024-A165 DAILY ORBIT UPDATE (2024 January 15) 2024-01-15 12:24:00
72 MPEC 2024-A158 DAILY ORBIT UPDATE (2024 January 14) 2024-01-14 12:21:00
73 MPEC 2024-A151 DAILY ORBIT UPDATE (2024 January 13) 2024-01-13 12:19:00
74 MPEC 2024-A150 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-01-13 04:14:00 Comet CATCH
75 MPEC 2024-A136 2023 WF37 2024-01-12 01:13:00 NEA (H>22) CATCH
76 MPEC 2024-A124 DAILY ORBIT UPDATE (2024 January 11) 2024-01-11 12:12:00
77 MPEC 2024-A110 2016 FM151 2024-01-10 16:29:00 NEA (H>22) CATCH
78 MPEC 2024-A108 DAILY ORBIT UPDATE (2024 January 10) 2024-01-10 12:09:00
79 MPEC 2024-A88 DAILY ORBIT UPDATE (2024 January 9) 2024-01-09 12:09:00
80 MPEC 2023-Y97 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-12-29 03:14:00 Comet CATCH
81 MPEC 2023-Y82 DAILY ORBIT UPDATE (2023 December 25) 2023-12-25 12:06:00
82 MPEC 2023-Y78 DAILY ORBIT UPDATE (2023 December 23) 2023-12-23 12:05:00
83 MPEC 2023-X98 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-12-06 08:53:00 Comet CATCH
84 MPEC 2023-X77 2023 WF4 2023-12-05 16:36:00 NEA (H>22) CATCH
85 MPEC 2023-X40 2023 WZ3 2023-12-04 21:54:00 NEA (H>22) CATCH
86 MPEC 2023-W121 2023 TH139 2023-11-25 17:53:00 NEA (H>22) CATCH
87 MPEC 2023-W102 2023 WK2 2023-11-23 13:57:00 NEA (18>H>22) CATCH
88 MPEC 2023-W83 2023 WB2 2023-11-22 11:55:00 NEA (H>22) CATCH
89 MPEC 2023-W79 2023 WX1 2023-11-22 11:48:00 PHAg18 CATCH
90 MPEC 2023-W66 DAILY ORBIT UPDATE (2023 November 21) 2023-11-21 12:05:00
91 MPEC 2023-W65 2023 WT1 2023-11-21 07:26:00 NEA (H>22) CATCH
92 MPEC 2023-W48 2008 WY13 2023-11-20 13:13:00 NEA (18>H>22) CATCH
93 MPEC 2023-W47 DAILY ORBIT UPDATE (2023 November 20) 2023-11-20 12:03:00
94 MPEC 2023-W29 DAILY ORBIT UPDATE (2023 November 19) 2023-11-19 12:02:00
95 MPEC 2023-W26 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-11-19 01:05:00 Comet CATCH
96 MPEC 2023-W21 DAILY ORBIT UPDATE (2023 November 18) 2023-11-18 15:14:00
97 MPEC 2023-W14 DAILY ORBIT UPDATE (2023 November 17) 2023-11-17 12:03:00
98 MPEC 2023-W08 2004 XO 2023-11-16 12:44:00 PHAg18 CATCH
99 MPEC 2023-W07 DAILY ORBIT UPDATE (2023 November 16) 2023-11-16 12:01:00
100 MPEC 2023-V242 DAILY ORBIT UPDATE (2023 November 14) 2023-11-14 12:38:00
101 MPEC 2023-V230 DAILY ORBIT UPDATE (2023 November 13) 2023-11-13 12:34:00
102 MPEC 2023-V225 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-11-13 04:13:00 Comet CATCH
103 MPEC 2023-V215 2023 VM7 2023-11-12 15:06:00 NEA (H>22) CATCH
104 MPEC 2023-V211 DAILY ORBIT UPDATE (2023 November 12) 2023-11-12 12:32:00
105 MPEC 2023-U276 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-10-29 08:53:00 Comet CATCH
106 MPEC 2023-U164 DAILY ORBIT UPDATE (2023 October 21) 2023-10-21 12:05:00
107 MPEC 2023-U159 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-10-21 05:24:00 Comet CATCH
108 MPEC 2023-U42 DAILY ORBIT UPDATE (2023 October 17) 2023-10-17 12:27:00
109 MPEC 2023-T241 DAILY ORBIT UPDATE (2023 October 14) 2023-10-14 12:16:00
110 MPEC 2023-R58 DAILY ORBIT UPDATE (2023 September 8) 2023-09-08 12:07:00

List of Observers

Observers Count
L. L. Fan, X. Kong, J. Q. Lu, Z. Lou, J. A. Jiang 73
Z. B. Su, S. F. Zhu, X. C. Li, S. X. Li, J. A. Jiang 3
Z. Q. Li, S. X. Li, R. D. Liang, X. Z. Li 6
Q. Y. Hai, X. C. Li, R. D. Liang, X. Z. Li, Z. Q. Li, S. X. Li 9
Z. Q. Li, X. Z. Li, R. D. Liang, Z. Y. Liu, S. X. Li 6
Z. Q. Li, X. Z. Li, R. D. Liang, Z. Y. Liu, S. X. Li, X. C. Li 24
Z. Y. Liu, S. X. Li, Z. Q. Li, Q. Y. Hai, K. Yan, J. Z. Zhu, N. Jiang, Z. Y. Cai 15
Z. Y. Liu, S. X. Li, Z. Q. Li 3
Q. Y. Hai, K. Yan, J. Z. Zhu, N. Jiang, Z. Y. Cai, Z. Q. Li, Z. Y. Liu 12
Q. Y. Hai, K. Yan, J. Z. Zhu, N. Jiang, Z. Y. Cai 3
K. Yan, Z. Q. Li, J. Z. Zhu, N. Jiang, Z. Y. Liu 3
K. Yan, Z. Q. Li, J. Z. Zhu, N. Jiang, Z. Y. Liu, S. X. Li 15
Z. Q. Li, K. Yan, Q. Y. Hai, X. L. Zhang, X. C. Tan 3
Z. Q. Li, S. X. Li, Q. Y. Hai 33
Z. Y. Liu, S. X. Li, Z. Q. Li, K. Yan, J. Z. Zhu, N. Jiang 9
Z. Lou, Z. Q. Li, S. X. Li, Q. Y. Hai 9
Z. Q. Li, S. X. Li, Q. Y. Hai, Z. Lou 18
Z. Lou, Z. Q. Li, S. X. Li, Q. Y. Hai, K. Yan 24
Z. Lou, Z. Q. Li, S. X. Li, Q. Y. Hai, K. Yan, L. L. Fan, X. Kong, J. Q. Lu, J. A. Jiang 24
B. Li, H. B. Zhao, Z. Lou, Z. Q. Li, S. X. Li, Q. Y. Hai, K. Yan 3
Z. Lou, Z. Q. Li, S. X. Li, Q. Y. Hai, K. Yan, J. H. Zhao, D. Z. Meng, J. A. Jang 6

List of Measurers

Measurers Count
B. X. Fu, S. H. Wang, J. Q. Lu, M. X. Cai, Z. L. Xu 73
B. Li, H. B. Zhao, Z. J. Xu, G. T. Zhaori 204
B. Li, H. B. Zhao, Z. J. Xu, G. T. Zhaori, B. X. Fu, S. H. Wang, J. Q. Lu, M. X. Cai, Z. L. Xu 24

List of Facilities

Facilities Count
2.5-m f/2.48 reflector + CCD 231